kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 11815 Comm: syz-executor.4 Not tainted 5.2.0-rc2+ #17 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:194 [inline] RIP: 0010:rt6_get_cookie include/net/ip6_fib.h:264 [inline] RIP: 0010:ip6_dst_store include/net/ip6_route.h:213 [inline] RIP: 0010:tcp_v6_connect+0xfd0/0x20a0 net/ipv6/tcp_ipv6.c:298 Code: 89 e6 e8 13 bf 47 fb 45 84 e4 0f 84 90 09 00 00 e8 c5 bd 47 fb 49 8d 7e 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 57 0e 00 00 4d 8b 66 70 e8 8d a3 34 fb 31 ff 89 RSP: 0018:ffff8880628ff690 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: ffff88808c510c30 RCX: ffffc9000e65d000 RDX: 000000000000001c RSI: ffffffff8628e7fb RDI: 00000000000000e4 RBP: ffff8880628ff810 R08: ffff888066b68380 R09: ffffed1015d26be8 R10: ffffed1015d26be7 R11: ffff8880ae935f3b R12: 0000000000000001 R13: ffff88808c510180 R14: 0000000000000074 R15: ffff8880628ffc90 FS: 00007fb208e53700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000075c000 CR3: 000000009aec9000 CR4: 00000000001406e0 Call Trace: __inet_stream_connect+0x834/0xe90 net/ipv4/af_inet.c:659 tcp_sendmsg_fastopen net/ipv4/tcp.c:1143 [inline] tcp_sendmsg_locked+0x2318/0x3920 net/ipv4/tcp.c:1185 tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1419 inet_sendmsg+0x141/0x5d0 net/ipv4/af_inet.c:802 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:671 ___sys_sendmsg+0x803/0x920 net/socket.c:2292 __sys_sendmsg+0x105/0x1d0 net/socket.c:2330 __do_sys_sendmsg net/socket.c:2339 [inline] __se_sys_sendmsg net/socket.c:2337 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2337 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459279 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fb208e52c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459279 RDX: 0000000020008844 RSI: 0000000020000240 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb208e536d4 R13: 00000000004c6f0e R14: 00000000004dc030 R15: 00000000ffffffff Modules linked in: ---[ end trace 7912d977e1427390 ]--- RIP: 0010:__read_once_size include/linux/compiler.h:194 [inline] RIP: 0010:rt6_get_cookie include/net/ip6_fib.h:264 [inline] RIP: 0010:ip6_dst_store include/net/ip6_route.h:213 [inline] RIP: 0010:tcp_v6_connect+0xfd0/0x20a0 net/ipv6/tcp_ipv6.c:298 Code: 89 e6 e8 13 bf 47 fb 45 84 e4 0f 84 90 09 00 00 e8 c5 bd 47 fb 49 8d 7e 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 57 0e 00 00 4d 8b 66 70 e8 8d a3 34 fb 31 ff 89 RSP: 0018:ffff8880628ff690 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: ffff88808c510c30 RCX: ffffc9000e65d000 RDX: 000000000000001c RSI: ffffffff8628e7fb RDI: 00000000000000e4 RBP: ffff8880628ff810 R08: ffff888066b68380 R09: ffffed1015d26be8 R10: ffffed1015d26be7 R11: ffff8880ae935f3b R12: 0000000000000001 R13: ffff88808c510180 R14: 0000000000000074 R15: ffff8880628ffc90 FS: 00007fb208e53700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4b70fbbdd3 CR3: 000000009aec9000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600